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Create ArrayList from array
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@Adam Please study the javadoc for java.util.List. The contract for add allows them to throw an UnsupportedOperationException. docs.oracle.com/javase/7/docs/api/java/util/… Admittedly, from an object-oriented perspective it is not very nice that...
Dealing with “java.lang.OutOfMemoryError: PermGen space” error
...n going into the Tomcat/bin directory and running tomcat6w.exe. Under the "Java" tab, add the arguments to the "Java Options" box. Click "OK" and then restart the service.
If you get an error the specified service does not exist as an installed service you should run:
tomcat6w //ES//servicename
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How to create local notifications?
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98
Here is sample code for LocalNotification that worked for my project.
Objective-C:
This code ...
Java Generics: Cannot cast List to List? [duplicate]
...hether it's safe or not.
Have a look at this section of Angelika Langer's Java Generics FAQ for more information.
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What is the relative performance difference of if/else versus switch statement in Java?
...g a custom Servlet oriented framework, too many servlets, is this an issue
Java Front Controller
If you're worrying about Java EE webapplication performance in general, then you may find this article useful as well. There are other areas which gives a much more performance gain than only (micro)op...
Is it possible in Java to access private fields via reflection [duplicate]
Is it possible in Java to access private field str via reflection?
For example to get value of this field.
3 Answers
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How do I remove the space between inline/inline-block elements?
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98
EDIT:
today, we should just use Flexbox.
OLD ANSWER:
OK, although I've upvoted both the f...
Eclipse: Enable autocomplete / content assist
...ce for autocomplete. Then select the desired method and wait 500ms for the javadoc info to pop up.
If this doesn't work go to the Eclipse Windows menu -> Preferences -> Java -> Editor -> Content assist and check your settings here
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I can’t find the Android keytool
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keytool comes with the Java SDK. You should find it in the directory that contains javac, etc.
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String concatenation: concat() vs “+” operator
...ring b) {
a += b;
return a;
}
}
Now disassemble with javap -c (included in the Sun JDK). You should see a listing including:
java.lang.String cat(java.lang.String, java.lang.String);
Code:
0: new #2; //class java/lang/StringBuilder
3: dup
4: invokespecial ...